컨테이너 터미널 하역장비 운전자의 근골격계질환 및 직무스트레스에 관한 연구

Abstract

According to the statistics in 2014, the musculoskeletal disorders (MSDs) accounts for 70% of work and occupational diseases in whole industry. As the rate of work type in back sprain, the back sprain rate is the highest at work type of transportation, load and unload in the order as transportation, load and unload (26.2%), service work such as administration, medical treatment (26.1%), manufacture and handling of things (13.6%) and assembling, installment, disassembling (12.2%). The unloading equipment is divided into crane and yard tractor in the container terminal. Both of those are carried containers by operator. In case of crane operators, they have to work at over 20m heights and looks down for long hours and Yard tractor operator performs with repeated postures for moving a container at a designated position. Also, the most important issue is the continuity of operation to complete the job within Estimated Time of arrival and Estimated Time of departure of vessels. Thus, the unloading operation is continued except for shifting downtime. Moreover, there are lots of overload works in musculoskeletal such as repeat, unnatural posture. The goal of this study is to support the musculoskeletal disorders and Job stress management plan for unloading equipment operators at the container terminal. Results showed that 37% of respondents have appearance symptoms and the musculoskeletal disorders rate is layer increased as the ages and years of service goes up. In addition, it is concluded that the musculoskeletal disorders (MSDs) are an important factor affecting the job stress.